--- client/dialogs.c.orig	Wed Oct 21 06:31:47 1998
+++ client/dialogs.c	Wed Feb  3 09:32:22 1999
@@ -764,7 +764,7 @@
   improvement_type[j++] = -1;
 
   for(i=0; i<B_LAST; i++) 
-    if(pcity->improvements[i]) {
+    if(i != B_PALACE && pcity->improvements[i] && !is_wonder(i)) {
       improvements_can_sabotage[j] = get_imp_name_ex(pcity, i);
       improvement_type[j++] = i;
     }  
--- server/unitfunc.c.orig	Wed Feb  3 09:23:40 1999
+++ server/unitfunc.c	Wed Feb  3 09:30:42 1999
@@ -588,10 +588,17 @@
 
     /*
      *check we're not trying to sabotage city walls or inside the capital 
-     * If we are, then there is a 50% chance of failing.
+     * If we are, then there is a 50% chance of failing.  Also, wonders of
+     * the world cannot be sabotaged, and neither can the Palace.
      */
 
     improvement--;
+
+    if (is_wonder(improvement) || improvement == B_PALACE) {
+	notify_player_ex(pplayer, pcity->x, pcity->y, E_NOEVENT,
+		 "Game: You cannot sabotage a wonder or a Palace!");
+	return;
+    }
 
     capital=find_palace(city_owner(pcity));